Sewing machine and computer readable medium

Details Sewing machine and computer readable medium Sewing machine and computer readable medium

2008-07-02

2011-10-18

Durham, Nathan (Department: 3765)

Sewing

Special machines

Pattern controlled or programmed

C112S278000, C112S470040

Reexamination Certificate

active

08037834

ABSTRACT:
A sewing machine includes a sewing machine motor that vertically drives a sewing needle via a main shaft; a sewing speed commander that produces a command sewing speed determined by rotational speed of the sewing machine motor; a stitch-pitch specifier that specifies a stitch pitch to be applied to manually fed sewing operation; a consumed thread amount detector that detects a consumed needle-thread amount in each ongoing sewing cycle; a sewing speed controller that controls sewing speed at the command sewing speed when the command sewing speed is equal to or less than a predetermined reference sewing speed, and that controls sewing speed at a target sewing speed calculated based on the consumed needle-thread amount and the stitch pitch when the command sewing speed is greater than the reference sewing speed.

REFERENCES:
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patent: 6470813 (2002-10-01), Ebata et al.
patent: 6959657 (2005-11-01), Duval
patent: 7325502 (2008-02-01), Konig et al.
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patent: 2003/0131773 (2003-07-01), Schweizer
patent: 2006/0213413 (2006-09-01), Koerner
patent: 2007/0256619 (2007-11-01), Koemer
patent: 2007/0272136 (2007-11-01), Shimizu
patent: 2008/0078313 (2008-04-01), Hamajima
patent: A-2002-292175 (2002-10-01), None
patent: A-2007-313159 (2007-12-01), None
patent: A-2008-79998 (2008-04-01), None
U.S. Appl. No. 12/076,627, filed Mar. 20, 2008 in the name of Nakamura et al.

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